Rit Color Stay Dye Fixative doubles the amount of color retention in fabrics such as cotton, linen, rayon, ramie, jute and hemp, which have been dyed with Rit Dye. For best results, use immediately after dyeing, before rinsing and laundering. Rit Color Stay Dye Fixative can be used when dyeing in the washing machine, sink or stovetop. It can also be sprayed directly onto fabric for many craft and DIY applications. Commercially dyed items can also be treated with Dye Fixative before laundering for the first time. Previously hand-dyed items can also be treated with Dye Fixative before laundering; however, the results may not be as apparent or long-lasting as when Dye Fixative is used immediately after dyeing. Made in USA.